| 摘要 |
PROBLEM TO BE SOLVED: To provide a foam-jetting pump vessel in which skill or long time is unnecessary for assembly because work for inserting a piston for liquid into a cylinder for liquid is easily performed in the case of inserting the piston body into a double cylinder to assemble a pump. SOLUTION: The foam jetting pump vessel is constituted by fixing a double cylinder 3 to a vessel 1 and inserting pistons 10, 12 and downward extending both a cylinder 3c for air and a cylinder 3d for liquid. At least the central part of the bottom 3e of the cylinder 3c for air is reversed upward. On one side, the cylinder for liquid is connected to the upper end part of the reversed part 3e1 in the bottom of the cylinder for air and thereafter extended downward. The inner face of the connected part is tilted to the inside and the downside so that diameter is made gradually smaller as the inner face of the connected part approaches from the upper part to the lower part. |
